Lucy Nicholson/ReutersBillionaire Leon Black must face a woman’s sexual assault lawsuit and cannot seek sanctions against her attorneys, a New York judge ruled this week. In November, Cheri Pierson filed a complaint accusing the private equity mogul of raping her at sex-trafficker Jeffrey Epstein’s New York mansion in 2002. Since then, Black, 72, filed a motion to partly dismiss Cheri Pierson’s case—and requested penalties against her lawyers at Wigdor LLP. But on Monday, Manhattan Supreme Court